CN217404060U

CN217404060U - Cement paste fluidity automatic measuring device

Info

Publication number: CN217404060U
Application number: CN202221422672.8U
Authority: CN
Inventors: 叶幼文; 刘利丰; 李观土
Original assignee: Guangdong Hanjiang Engineering General Contracting Co ltd
Current assignee: Guangdong Hanjiang Engineering General Contracting Co ltd
Priority date: 2022-06-09
Filing date: 2022-06-09
Publication date: 2022-09-09
Anticipated expiration: 2032-06-09

Abstract

The utility model discloses an automatic measuring device for fluidity of cement paste; belongs to the technical field of cement paste fluidity determination; the technical key points of the device comprise a base, wherein a scale plate with cross scales is arranged on the base, and an experiment disc made of transparent materials is detachably arranged on the scale plate; a first suspension is arranged on the base on the side of the experimental disc, and a camera is arranged on the first suspension above the scale center of the scale plate; a test mould for storing the cement paste is movably arranged on the experiment disc, and the test mould is connected with a two-dimensional moving module with lifting and translating functions; in an initial state, the test mold is positioned on the experiment disc, and the axis of the test mold is aligned with the scale center of the scale plate; a slurry receiving disc matched with the test mold is arranged above the test disc on one side of the test mold in the translation direction, and the two-dimensional moving module drives the test mold to move between the test disc and the slurry receiving disc; the utility model aims to provide a cement paste fluidity measuring device which can automatically lift the mould and accurately measure; the method is used for measuring the fluidity of the cement paste.

Description

Cement paste fluidity automatic measuring device

Technical Field

The utility model relates to a cement paste fluidity survey device, more specifically say, especially relate to a cement paste fluidity automatic determination device.

Background

Cement paste fluidity refers to the diameter of a coverage area like a circle formed by the flow of cement paste on a glass plate in a prescribed manner. The usual test methods are: and (3) filling the slurry into a truncated cone-shaped test mold, tamping to compact, leveling the surface, lifting the test mold for 30 seconds, measuring the maximum diameter of the flowing part in two directions perpendicular to each other, and taking the average value of the maximum diameters as the fluidity of the cement slurry.

In the test, the test mold is directly lifted by an operator by hands, the test requires that the levelness of the test mold is ensured at the moment of mold lifting, and the requirement on the familiarity of the operator is very high. If the mould is lifted and the test mould is inclined instantly, the cement paste flows out in a certain direction first, the consistency of the direction and the speed of the cement paste flowing on the glass plate can be influenced, and the accuracy of a test result is further influenced.

Meanwhile, according to the existing operation mode, the clean slurry on the glass plate needs to be measured after flowing for 30 s. In the actual operation, the operator does not perform the operation according to the operation rule, but measures the net pulp flow less than 30s according to the visual measurement mode. This way, too, can cause measurement inaccuracies.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to the not enough of above-mentioned prior art, provide an automatic carry mould, accurate measuring cement paste fluidity survey device.

The technical scheme of the utility model is realized like this: the utility model provides a cement paste fluidity automatic determination device, includes the base, is equipped with the scale plate of taking the cross scale on the base, can dismantle on the scale plate to be provided with the experiment dish of being made by transparent material.

The base on the side of the experimental disc is provided with a first suspension, and the first suspension above the scale center of the scale plate is provided with a camera.

The test mould is movably arranged on the experiment disc and used for storing the cement paste, and the test mould is connected with a two-dimensional moving module with lifting and translating functions. In the initial state, the test mold is positioned on the experiment disc, and the axis of the test mold is aligned with the scale center of the scale plate.

The two-dimensional moving module drives the test mold to move between the test disc and the slurry receiving disc.

In the automatic measuring device for cement paste fluidity, the two-dimensional moving module comprises a horizontal guide rail arranged on the base on one side of the experiment disc, a first sliding seat is arranged on the horizontal guide rail, and a horizontal cylinder connected with the first sliding seat is arranged at one end of the horizontal guide rail.

The first sliding seat is provided with a vertical guide rail, the vertical guide rail is provided with a second sliding seat, and the upper end of the first sliding seat is provided with a vertical cylinder connected with the second sliding seat. And the second sliding seat is provided with an installation support which can be quickly assembled and disassembled with the test mold.

In the automatic measuring device for the fluidity of the cement paste, the third sliding seat is arranged between the first sliding seat and one end of the horizontal guide rail, which is far away from the horizontal cylinder, the mounting plate is arranged on the base, which is far away from one end of the horizontal cylinder, of the horizontal guide rail, and the return spring is arranged between the mounting plate and the third sliding seat. And a second suspension for placing the slurry receiving disk is arranged on the third sliding seat.

In an initial state, the slurry receiving disc is positioned above the experiment disc on one side of the test mould along the moving direction of the horizontal guide rail. When the test mold moves to the position above the slurry receiving disc, the first sliding seat is in contact with the third sliding seat, and the slurry receiving disc and the test mold are synchronously far away from the experiment disc.

In the automatic measuring device for fluidity of cement paste, the test mold comprises a conical cylinder for storing the cement paste, and the upper end of the conical cylinder is integrally formed with the feed hopper. The side wall of the test mold is provided with a connecting block which is sleeved with the mounting bracket, an inner screw hole which is opposite to the mounting bracket is vertically arranged on the connecting block, and a butterfly screw is connected with the inner screw hole in an inner screw way.

In the automatic measuring device for the fluidity of the cement paste, the positioning ring which is matched with the outer contour of the experiment disc is arranged at the edge of the scale plate.

The utility model adopts the above structure after, will try the mould to mention and the translation through the two-dimensional movement module behind the leading-in examination mould of cement paste, the levelness when guaranteeing to try the mould to lift totally guarantees the homogeneity that the paste flows totally to guarantee the measuring accuracy. Meanwhile, the camera is controlled by a preset program to be matched with the scale plate to measure the clean pulp after 30 seconds, so that inaccuracy caused by manual operation is avoided. The accuracy of the determination of the fluidity of the net slurry is further improved.

Further, set up at examination mould side and connect the thick liquid dish, can prevent that examination mould from carrying out the translation after last, the circle that the cement paste formed on the experiment dish is fallen to remaining slurry and causes the influence.

Drawings

The present invention will be described in further detail with reference to the following examples, which are not intended to limit the invention.

Fig. 1 is a schematic structural diagram of the present invention;

fig. 2 is a schematic structural diagram of the two-dimensional moving module of the present invention;

fig. 3 is a schematic structural diagram of the scale plate of the present invention;

fig. 4 is a schematic structural diagram of the test mold of the present invention.

In the figure: 1. a base; 2. a scale plate; 3. an experimental disc; 4. a first suspension; 5. a camera; 6. testing the mold; 6a, a conical cylinder; 6b, a feed hopper; 6c, connecting blocks; 6d, internally screwing holes; 7. a two-dimensional moving module; 7a, a horizontal guide rail; 7b, a first sliding seat; 7c, a horizontal cylinder; 7d, vertical guide rails; 7e, a second sliding seat; 7f, a vertical cylinder; 7g, mounting a bracket; 7h, a third sliding seat; 7i, mounting plates; 7j, a return spring; 7k, a second suspension; 8. a pulp receiving disc; 9. a retaining ring.

Detailed Description

Referring to fig. 1-4, the utility model discloses a cement paste fluidity automatic measuring device, including base 1, be equipped with the scale plate 2 of taking the cross scale on base 1, can dismantle on scale plate 2 and be provided with the experiment dish 3 of making by transparent material. In this embodiment, the edge of the scale plate 2 is provided with a positioning ring 9 adapted to the outer contour of the experiment disc 3. The experiment disc can be rapidly and accurately placed on the scale plate before an experiment is carried out by arranging the positioning ring at the edge of the scale plate.

A first suspension 4 is arranged on the base 1 at the side of the experimental disc 3, and a camera 5 is arranged on the first suspension 4 above the scale center of the scale plate 2. The camera is connected to an external image display terminal, and experimenters can obtain data by observing the cement paste on the image and the scales of the dial.

The experiment disc 3 is movably provided with a test mould 6 for storing cement paste, and the test mould 6 is connected with a two-dimensional moving module 7 with lifting and moving functions. In the initial state, the test mold is positioned on the experiment disc 3, and the axis of the test mold 6 is aligned with the scale center of the scale plate 2.

In this embodiment, the two-dimensional moving module 7 includes a horizontal guide rail 7a disposed on the base 1 on one side of the experiment tray 3, a first sliding seat 7b is disposed on the horizontal guide rail 7a, and a horizontal cylinder 7c connected to the first sliding seat 7b is disposed at one end of the horizontal guide rail 7 a.

Be equipped with vertical guide rail 7d on the first sliding seat 7b, be equipped with second sliding seat 7e on vertical guide rail 7d, be equipped with the vertical cylinder 7f of being connected with second sliding seat 7e in the upper end of first sliding seat 7 b. The second sliding seat 7e is provided with a mounting bracket 7g which can be quickly assembled and disassembled with the test mold 6.

Be provided with above the experiment dish 3 of trying 6 translation direction one sides of mould and try 6 matched with and connect thick liquid dish 8, two-dimensional movement module 7 drives and tries 6 moulds 3 and connect and move between thick liquid dish 8 at the experiment. In the initial state, the distance between the projection of the slurry receiving disc on the experimental disc and the projection of the test mold on the experimental disc is 0.5-1 cm.

Preferably, a third sliding seat 7h is arranged between the first sliding seat 7b and one end of the horizontal guide rail 7a far away from the horizontal cylinder 7c, an installation plate 7i is arranged on the base 1 of the horizontal guide rail 7a far away from the horizontal cylinder 7c, and a return spring 7j is arranged between the installation plate 7i and the third sliding seat 7 h. A second suspension 7k for placing the slurry receiving tray 8 is provided on the third sliding seat 7 h.

In the initial state, the slurry receiving tray 8 is positioned above the test tray 3 on one side of the test mold 6 in the moving direction of the horizontal guide rail 7 a. When the test mold 6 moves to the position above the slurry receiving disc 8, the first sliding seat 7b contacts with the third sliding seat 7h and enables the slurry receiving disc 8 and the test mold 6 to be away from the experiment disc 3 synchronously.

Connect and can be located the below of examination mould all the time after this structure is adopted to the thick liquid dish, outside the calibrated scale shifted out the experiment dish along with examination mould together simultaneously, can avoid sheltering from the scale of below calibrated scale when the camera is shot to avoid influencing reading of data.

Preferably, the test mold 6 includes a tapered cylinder 6a for storing cement paste, and a hopper 6b is integrally formed at an upper end of the tapered cylinder 6 a. The side wall of the test die 6 is provided with a connecting block 6c which is sleeved with the mounting bracket 7g, an inner screw hole 6d which is opposite to the mounting bracket 7g is vertically arranged on the connecting block 6c, and a butterfly screw is connected with the inner screw hole 6d in an internal thread manner. After the experiment is completed, the test mold needs to be cleaned, and the test mold is conveniently disassembled and assembled by adopting the sleeved mounting form between the test mold and the mounting bracket.

The utility model discloses each cylinder, camera etc. of well adoption are prior art. The working principle and the connection structure mode are common knowledge in the field. Meanwhile, according to specific requirements and complexity, the existing control terminals such as an electric cabinet, a single chip microcomputer or a PLC are adopted to control the cylinders and the cameras. Above-mentioned each cylinder, camera are all not the utility model discloses the technical point that will protect, no longer give unnecessary details here.

When testing, pour the clean thick liquid of cement into a toper section of thick bamboo through the feeder hopper in to the clean thick liquid upper surface of cement and a toper section of thick bamboo upper end parallel and level, start the lift cylinder this moment and lift the examination mould, the clean thick liquid of cement flows on the laboratory dish and is circularly. When the test mold is lifted to the highest point, the horizontal cylinder pushes the first sliding seat, and when the test mold moves to the position above the slurry receiving disc, the first sliding seat is in contact with the third sliding seat, so that the slurry receiving disc and the test mold are synchronously far away from the experiment disc. The whole process is completed in 30 seconds.

And starting timing for 30 seconds when the lifting cylinder is started, and photographing the cement paste on the experiment disc by the camera in the 30 seconds in cooperation with the dial to measure the diameter of the cement paste circle.

After the experiment is completed, the test mold and the experiment disc are respectively disassembled for cleaning.

The above embodiment is the preferred embodiment of the present invention, which is only used to facilitate the explanation of the present invention, and not to the present invention, which makes any restriction on any form, and any person who knows commonly among the technical fields has, if in the scope of the technical features that do not depart from the present invention, the present invention is utilized to make the local change or modification equivalent embodiment, and does not depart from the technical features of the present invention, and all still belong to the technical features of the present invention.

Claims

1. An automatic measuring device for fluidity of cement paste comprises a base (1), and is characterized in that a scale plate (2) with cross scales is arranged on the base (1), and an experimental disc (3) made of transparent materials is detachably arranged on the scale plate (2);

a first suspension (4) is arranged on the base (1) at the side of the experimental disc (3), and a camera (5) is arranged on the first suspension (4) above the scale center of the scale plate (2);

a test mold (6) for storing cement paste is movably arranged on the experiment disc (3), and the test mold (6) is connected with a two-dimensional moving module (7) with lifting and translation functions; in an initial state, the test mold is positioned on the experiment disc (3) and the axis of the test mold (6) is aligned with the scale center of the scale plate (2);

a slurry receiving disc (8) matched with the test mold (6) is arranged above the test disc (3) on one side of the translation direction of the test mold (6), and the two-dimensional moving module (7) drives the test mold (6) to move between the test disc (3) and the slurry receiving disc (8).

2. The automatic measuring device for fluidity of cement paste according to claim 1, wherein the two-dimensional moving module (7) comprises a horizontal guide rail (7a) arranged on the base (1) at one side of the experimental tray (3), a first sliding seat (7b) is arranged on the horizontal guide rail (7a), and a horizontal cylinder (7c) connected with the first sliding seat (7b) is arranged at one end of the horizontal guide rail (7 a);

a vertical guide rail (7d) is arranged on the first sliding seat (7b), a second sliding seat (7e) is arranged on the vertical guide rail (7d), and a vertical cylinder (7f) connected with the second sliding seat (7e) is arranged at the upper end of the first sliding seat (7 b); the second sliding seat (7e) is provided with a mounting bracket (7g) which can be quickly assembled and disassembled with the test mold (6).

3. The apparatus according to claim 2, wherein a third sliding seat (7h) is provided between the first sliding seat (7b) and the end of the horizontal guide rail (7a) away from the horizontal cylinder (7c), a mounting plate (7i) is provided on the base (1) of the horizontal guide rail (7a) away from the end of the horizontal cylinder (7c), and a return spring (7j) is provided between the mounting plate (7i) and the third sliding seat (7 h); a second suspension (7k) for placing the slurry receiving disc (8) is arranged on the third sliding seat (7 h);

in an initial state, the slurry receiving disc (8) is positioned above the experimental disc (3) on one side of the test mould (6) along the moving direction of the horizontal guide rail (7 a); when the test mold (6) moves to the position above the slurry receiving disc (8), the first sliding seat (7b) is in contact with the third sliding seat (7h) and enables the slurry receiving disc (8) and the test mold (6) to be away from the test disc (3) synchronously.

4. The apparatus for automatically measuring fluidity of cement paste according to claim 2, wherein the test mold (6) comprises a conical cylinder (6a) for storing cement paste, a feed hopper (6b) being integrally formed at an upper end of the conical cylinder (6 a); the side wall of the test die (6) is provided with a connecting block (6c) which is sleeved with the mounting bracket (7g), an inner threaded hole (6d) which is opposite to the mounting bracket (7g) is vertically arranged on the connecting block (6c), and a butterfly screw is connected with the inner threaded hole (6 d).

5. The device for automatically measuring the fluidity of cement paste as claimed in claim 1, wherein the edge of the scale plate (2) is provided with a positioning ring (9) which is adapted to the outer contour of the experimental disc (3).